If I have a DataTable (in-memory) read by my C# program from a flat file, and I want to create it as a new table in a SQL Server database... what is the simplest way to do that?
It seems like something like SqlBulkCopy with an option to create a new destination SQL server table would be on my line of thinking, but I dont see a way.
I am trying to load data from an existing DataTable into a new DataTable. Not sure how to get it started. Do not want to merely copy data, I need to load it in row by row.
protected DataTable GalleryByCat()
{
// GLinks is the new DataTable I want to construct and bind to a DataList, Repeater, ListView
[code]...
When using the DataTable.Load(SQLDataReader) method, if the datatable is a property of a class, the set method is not called to populate the object. For example...
MySQLDataReader = command.ExecuteReader();
if (MySQLDataReader.HasRows)
myObjDataTable.Load(MySQLDataReader); -- The result of this will be 0 rows returned. The "Set" method of the object is never called.
How can i save the datatble back to my database?
First i selected some rows from database then using adp.Fill(DT) i filled datatable then i closed connection.
Then i made changes in this datatable in some rows & now i wonder how can i send this rows back to database?
NOTE:-i modified my datatble using FOR loop .and i set cells to someother values like dt.rows[2][2]="anything i want";
i am trying to create connection using OLEDB connection in my app. but i am not able to create the connection as in datasource i want to use Server.mappath, but cudn't find the right method to use it. i am trying to make connection with Access database file. following is code i have tried:
string path = Server.MapPath("~/uploadaccess/Production.mdb");
string ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & Server.MapPath("~/uploadaccess/Production.mdb")&";";
and also
OleDbConnection myConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & path&";");
and tried this
OleDbConnection myConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("~/uploadaccess/Production.mdb"));
and this is the error i am getting:
Operator '&' cannot be applied to operands of type 'string' and 'string'
[Code]....
Refer to datatable columns with database column names?
Never really worked with the asp tables but for this project it makes more sense, I am having trouble addding rows dynamically from the sql datatable i am pulling. In hte datatable it has 12 rows with 14 columns, I need to make this into a table, with a dtagrid I would be done but I have to pull other data that they could add columns, so a table I am told is easier.
This gets my data and I can see it
mydataTable = new DataTable
mydataTable = GetData(sql)
mydataTable.add.row(myDataTable.rows(0)(0))
I get nothing but errors trying to do this, what is the correct way to add rows to an asp.net table
Can I add this all to a datagrid and then add the extra columns I need if they are there with out using a table.
I've got a MS SQL (Express) database. its quite complex and uses a lot of tables. Is there a way to generate a SQL script for creating the complete database, but not the content of it.
I like to copy the database. Right now i copy the database. After that i need manually to clear all fields. There are also some relationships, so its a lot of work to clear all of it manually.
Ok, I have some experience, but I have always started with something and moved on from there.
I want to create a ASP.net Project in MSVC 2008 with the following...
- SQL 2005 database that I can use MSQL Server Management Studio with
- Forms authentication
- Authentication/roles etc is stored in the above database
So far every attempt has resulted in a database that when I attach with MSQL Management Studio I am logged in as guest, and thus can't do much.
I have a 3 column datatable in a session. I know I can use DataAdapter to do the insert but i only need to insert 2 of the columns.
View 3 Repliesi already followed steps in msdn and created a new
using Right Click on Security and New Login
I am trying to Create a Sql Sever Authentication User
which i selected and filled both password and confirm password and then OK
now when i am trying to Login this User its giving me this error
New User-mojo
password-mojo1
[IMG]http://i50.tinypic.com/33lo9lk.jpg[/IMG]
While Login Giving Error
[IMG]http://i49.tinypic.com/68zk3o.jpg[/IMG]
I have a datatable for which i'm defining a dataadapter. I'm specifying an updatecommand with sqlparameters for the dataadapter I set the updatecommand's parameters using the following overload:
[Code]....
The length 16 is used because this is the length of the field according to sql (the image datafield is a pointer of size 16) I noticed .Net is actually truncating the string because of the length i'm setting. An image of size 3kb will properly upload if we set the length field to be greater than 3kb The question I have is what is the proper value (or strategy) to use in order to set for the length field so that ALL images will properly update to the database, with each using the appropriate size.
I guess i could theoretically set the length to be maxint, but this seems sloppy. Looking at sqlparameter documentation i didnt see an 'unlimited' or 'default' length i could set, which would allow each update statement called to use the appropriate size for the data length for that row.
i have the dataset with one table.Table contains three column like 'Name','Location','Pin'.I would like to move the data from another table based on schema.
View 2 RepliesI have two datatables, I want to get all records which are in one datatable but all matching records which exist in another datatable should not be available.
In terms of set, you can say that record which are in 1st datatable but not in 2nd DataTable.
I have some data which is in mySQL, i am not familier with mySQL, i would like to transfer all the data from MySQL to SQL Server database,
View 11 RepliesI am converting DataTable To Excel Format using oledb im using following code
private void btnexcel_Click(object sender, EventArgs e) {
Dictionary<String, String> schema = dac.DatasourceSchema(tablename); //data tables Columns Headers And Data types
string[] values = schema.Values.ToArray(); // column Headers
string[] keys = schema.Keys.ToArray(); // datatypes
SaveFileDialog saveFileDialog = new SaveFileDialog();
[Code] ....
I want to insert my Dictinary key value pairs in below command
cmd.CommandText = "CREATE TABLE sheet1 (ID INTEGER,NAME NVARCHAR(100))"; /
cmd.ExecuteNonQuery();
I have created a sdf database in a mobile application.Now I want to synchronize that database to a sql server database.
View 1 RepliesI have created web pages using VS Web Developer that use a local Developer Edition of SQL server database on my PC with LINQ to SQL. When I deploy my website to a remote web host SQL server, I need for my web pages to be able to use the remote database instead of the local database. So, how do I get the Server Explorer to connect with a remote SQL Server database?
View 6 RepliesI want to copy a database on a development server to my local server. I am not the server administrator but I have rights to the database. Soon after the wizard Executes the SQL Server Agent Job it fails and the error message says:
The job failed. Check the event log on the destination server for details.
Where do I find this log? Also what could be the problem?
I have created database .sql file for create schema with export database. (its .sql file size is 48.2 MB)
View 1 Replieshow to copy data from one SQL Server database to other SQL server database using two connection string...
View 4 Replieshow I can create a Database in SQL Express, then add tables and columns .. etc to the Database.
On PHP & MySQL I use to go into PhpMyAdmin and do that all there ! However with SQL Server Express and Visual Studio 2010. how to do it.
I wanted to use the "create database query" from my ASP.Net page, say "install.aspx". So that when the page is run, it works as an automated tool to create database and tables required for the application.
1. What should be the connection string (if any)?
2. What functions are to be used?
I want to host my web site on an ISP hosting provider because my upload speed is not sufficient, however I want the database to be hosted locally.1) Is this possible?2) Does SQL server require good upload bandwidth?3) How much data (just an estimate) would it use to retrieve 20 rows of 10 columns?4) I realise this is not an ASP question so can you direct me to where I should post this if noone wants to answer it?
View 1 RepliesI have built a website using Visual Studio 2008 asp.net 3.5, and data is retreive from a database that is made by SQL Server Management Studio 2008.
The question is: How can I upload the database files to the server? Can you give me a step by step description?!
